Questions tagged [academic-graduate]
Expert level questions which do not arise prior to graduate studies in economics.
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Has any progress been made on the Pacman Conjecture on Finite Time Horizons?
The Pacman conjecture states that the optimal strategy for monopolistic durable goods manufacturers is to set price high and slowly drop it (i.e. eating their way down the demand curve).
Empirically ...
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Arrow's Dictator
Arrow's Impossibility Theorem is often presented as a negative result in graduate classes. I wonder if the 'dictator' is taken too literally. If the assumptions of the theorem hold, there exists an ...
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2
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What should I gain out of second year classes?
I'm in my second year. Most of my classes are just introduction to a bunch of papers and models. I'm not sure what I should be gaining out of these papers. What are the skills I should be picking up?
...
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Solving Leeper (1991) model
I am attempting to solve a variation of Leeper's (1991) model, which deals with the FTPL. This is what I have done so far:
The utility function is $\log(c_t)+\delta\log(M_t/p_t)$.
I obtain two ...
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Interpolating GDP
So I'm conducting a test on the strength of the APT model using data, I wanted to use GDP as one of my variables but it uses quarterly data, whereas the rest of my dataset is monthly. So, my question ...
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Conventions for reading mathematically rigorous academic articles in economics
How would an informed reader typically go about reading a mathematically rigorous academic article in economics, with lots of notations, assumptions and postulations (e.g, a typical article published ...
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1
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How do I elegantly upload my working paper on SSRN?
I am an academic novice. Recently, I have a working paper that I want to upload to SSRN. I have several questions that I wish to get answers to:
Will registering SSRN with a private email address ...
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Does julia's speed advantage over python make any difference for DSGE modeling?
When compared to Python the main selling point of Julia is its speed as it is often argued. However, from my own personal experience I never noticed any significant difference in speed between Julia ...
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PhD Micro and Macro Comprehensive Exams
I am interested in seeing some old examples of PhD comprehensive exams in both Micro and Macro. I have seen that previous posts (like this one) had some suggestions given, but some of the links (such ...
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Learning post-keynesian and marxist economics
My question here is not about theory, but more about the teaching landscape. I'm currently learning economics in Canada, and I realize that the academic world is very homogeneous. I'm quite impressed ...
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Opportunities for Computer Science Graduates in the Field of Economics [closed]
I know this question has been asked quite a few times already but I have several other different questions to ask too. So, I am asking all of them here.
Let me give you a quick summary of my ...
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Doing a PhD Economics without background in formal theorems?
I could really use some advice. I am a new PhD student in Economics and Finance. My background is in economics, and while I did mathematics in my Master's course, it was more data-analysis based ...
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In Economics, how likely is a R&R paper be finally accepted in a top field journal or top 5 journal? [closed]
Based on reliable data (if there is any), how likely is a R&R be finally accepted approximately?
Here is some numbers I found:
According to an anonymous comment, the post RR acceptance rate for ...
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Is it necessary to ask permission before including someone in the acknowledgements of a economic research paper?
Do I need permission to thank someone, even if I said “all mistakes are our own”?
Do I have to make sure that the person being thanked must read the paper, or, it is fine if he just discussed about ...
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Solving this system of ODE
I have the following system of equations
$$ \rho V(u, \epsilon^i) = F(u, \epsilon^i) + V_u(u, \epsilon^i)g(u, V(u, \epsilon^i) + \lambda^i \left(V(u, \epsilon^{-i}) - V(u, \epsilon^i)\right)$$
with $...
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Thesis research advice on what statistical method to use for small sample?
I am writing my thesis in economics and trying to prove there is a correlation between 2 variables Data collected with Likert scale questionnaire (1-5 scale) I summed up the data and got scale ...
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Where to find the latest statistics of brain drain in the world?
Where to find the latest statistics of brain drain in the world?
I would appreciate your suggestions.
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1
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What is the difference between a power law exponent and the Pareto exponent?
I use the poweRlaw package in R to fit a power law to my data. I am trying to figure out what is the value of the Pareto exponent.
Assume the probability mass function is defined by:
$$
p(x) = \...
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Log linearising (Gali textbook)
In Gali (2015)'s textbook Monetary Policy, Inflation, and the Business Cycle, variables in levels are denoted with capital letters, logged variables with lowercase letters.
However, when a log-...
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Optimal price function: application of calculus of variations
The problem, I am trying to solve is based on the paper by Rochet and Vila 1994 (see literature below). In fact, it is a variant of the seminal paper of Kyle 1985 in the finance/economics literature. ...
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What are some applications of Real Analysis in Graduate Economics?
I am interested as to what areas of masters/PhD coursework that learning the fundamentals of Real Analysis would be beneficial for?
I am aware of its applications in Econometrics proofs and analysis, ...
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Economics PhD graduate? [closed]
What are the options for Economics PhD students after graduation? I am aware most students end up going into academia as either professors or researchers. What are the options in the corporate world ...
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Using web scraped data for consumer price indices
Is there information and literature regarding comparative consumer price index methods? Specifically, the web scraping method of index construction?
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Market Power in microeconomic theory
What does the term Market Power mean in microeconomic theory
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Getting a Paper Published
I have a nice and (I think) significant result. I would like to publish it, but I have no idea how. It's a proof of an optimal institutional structure. Who do I contact?
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Barro's (2009) rare disaster model in the AER: How to derive equation (10)?
In Barro (2009) Rare disasters, asset prices and welfare costs Barro develops a Lucas tree model with Epstein-Zin preferences.
My question concerns the paper's equation (10). In this equation Barro ...
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Solving rational expectations model - Sims form
I am trying to solve my first ratex model and make some impulse response functions using Dynare. I am following Leeper (1991). This is what I have done so far:
The utility function is $\log(c_{t})+\...
CommunityBot
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Stochastic growth in continuous time
Literature: See Chang (1988) for theoretical part and Achdou et
al. (2015) for numerical part respectively.
Model
Consider the following stochastic optimal growth problem in per capita notation.
\...
CommunityBot
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Value function iterations with hyperbolic discounting
I am currently working to the numerical solution of a model similar to the consumption-savings decision model with hyperbolic discounting as in Krussel et al. (2003).
Even if hyperbolic discounting ...
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Optimal consumption in Merton-like portfolio choice model with constant wage
My Questions
Consider the following problem. It is almost identical to
the classic Merton portfolio choice problem. Here I'm solving it using
the so-called Martingale method. I have provided my ...
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Did previous researchers fail to detect the hot hand simply because of a statistical fallacy?
Many basketball fans/players believe that having made several shots in a row, the next shot is more likely to go in. This is sometimes called the hot hand.
Starting (I think) with Gilovich, Mallone, ...
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How do I use the Malliavin calculus to solve for the optimal trading strategy in the classic Merton problem?
How do I use the Malliavin calculus to solve for the optimal trading strategy in the classic Merton problem?
In Duffie's book "Dynamic Asset Pricing," he outlines the "Martingale method" of solving ...
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Does risk aversion cause diminishing marginal utility, or vice versa?
Let $A$ be the set of possible states of the world, or possible preferences a person could have. Let $G(A)$ be the set of "gambles" or "lotteries", i.e. the set of probability distributions over $A$. ...
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A general formulation to capture price stickiness
In Wickens' macro book, page 227 (1st edition), the author states
where $p^*_t$ is the optimal price at time $t$.
The three theories he is referring to are: Taylor Model of Overlapping contracts, ...
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$\alpha$ condition and choice structure
I am trying to prove a statement that if $c_R$ is a choice structure, then it must satisfy Sen's $\alpha$ condition.
However, if $X=\{a,b,c \}$, I can construct some choice structure like $c(\{a\})=a,...
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Which of the possible monetary policy channels is there empirical evidence for?
There are many possible monetary policy channels. These channels are the different ways that changes in the Fed's interest rates can affect the economy: exchange rate depreciations, business ...
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Firm Sizes over the business cycle
There has been a lot of evidence about the firm size distribution (as measured in employment) being Pareto (see for example Luttmer 2007), but what are the properties of this distribution over the ...
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Is there a model for how much a philosopher produce in his lifespan?
Is there a model for how much a philosopher produce in his lifespan?
If not, state the economical reason for why we pay the philosopher.
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How to close the gap between non-Econ background and Macroeconomics
I'm a first year PhD student with mathematical finance background, and am not quite familiar with all the assumptions/setup for macroeconomics. During study I found the math relatively easy but I'm ...
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Are there some nice properties for a finite two-player game having an increasing differences utility and a decreasing differences utility?
Nice properties of the set of Nash equilibria can be shown for supermodular games(see here). But for a two-player game in which
Strategy spaces for two player, $S_1$ and $S_2$ are finite, and both ...
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Why are some economists remarkably productive?
I'm a first year PhD student and I randomly go to different professors' websites to admire their works. Usually an economist has around 20 published papers when he/she reaches professorship. But there ...
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How to derive formula for marginal probability of choosing nest in nested logit model?
I am trying to understand all the details of the nested logit and what confuses me is the formula for marginal probability of choosing the nest. In more details: the joint probability of individual n ...
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If $a$ and $b$ are two pure rationalizable strategies, can $0.5a+0.5b$ fail to be a rationalizable strategy?
It is easy to see that if $\sigma$ is mixed rationalizable strategy, then a pure strategy $a$ such that $\sigma(a)>0$ is also rationalizable, but it seems not vice versa.
For a two-player finite ...
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What does "agent" mean in Pearce's formulation of extensive form rationalizability?
While reading Pearce(1984), I can't understand what "agent" $j$ and agent $ij$ mean on page 1041:
Consequently I associate a conjecture $$ c^{ij} = (c^{ij}(1), ... ,
> c^{ij}(N)) $$ with each ...
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Can repeated bidding in an auction make each player's type common knowledge?
In Benjamin Edelman, Michael Ostrovsky, and Michael Schwarz(2007), there's a hand-waving argument to justify their setting as a game of complete information:
we assume that all values are common
...
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How to write the dual problem of this maximization problem?
On this note for Shapley-Shubik model, there's a maximization problem:
$$\max_{x_{ij} \in \mathbb{R}^{M \times N}}\sum_{j \in N}\sum_{i \in M}v_{ij}x_{ij}$$
$$\text{s.t.} \ \sum_{j \in N}x_{ij} \...
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Hot Topics in Labor-Macro
I'm interested in currently hot research topics within Labor Macro. I'm only aware of the debate on the recent shift in the US Beveridge curve, and, of course, the olden but golden Shimer puzzle.
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What is the definition of a "Stackelberg leader-leader equilibrium"?
I have encountered the equilibrium concept of "Stackelberg leader-leader equilibrium" while reading Product Line Rivalry (AER, Brander and Eaton (1984). They say "we define a Stackelberg strategy as ...
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Interchangeability between knowing an event obtains with probability 1 and knowing an event obtains with absolute certainty?
In the literature of interactive epistemology, for a player, knowing an event obtains with probability one and knowing an event obtains with absolute certainty are different. Is there a nontrivial (...
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One-shot deviation principle for infinite repeated games and dynamic programming
In a context that future return is discounted by a constant parameter, one-shot deviation principle holds for both repeated games and dynamic programming.
Because, in repeated games, a one-shot ...